SINTERED GLASSCERAMIC MATERIALS BASED ON CALCIUM-PHOSPHATE GLASSES

摘要

The particulars of the crystallization of calcium-phosphate glass powders with particle size 90-400 urn are investigated, the structure and phase composition of the crystallized materials are determined, and the sintering regime for narrow powder fractions for obtaining the maximum possible open porosity is optimized. The porosity of the sintered glassceramic materials is 25 percent, and the pore size is of the order of 100 mum. The materials obtained release into a water medium calcium cations and phosphate anions, which is the price for their successful adaptation in a living organism.